James h



(NovModel.) l

J. AH. NORTHROP.

' LOOM.

No. 558,455. Patented Sept. 29, 1895.

Y UNITED STATES 'v PATENT Erica,

JAMES n. MORTI-TROP, oE HOPEDALE, MASSACHUSETTS, AssieNoR To THENoRTHRoPYLooM COMPANY, oF sAoo, MAINE.

LOONI.

SPECIFICATION forming part of Letters Patent No. 568,455, datedSeptember 29, 1896.

l Application filed June 17,1896. Serial No. 595,857. (No model.) i

To cir/ZZ whom, t may concern:

Be it known that I, JAMES H. N oRTHRor, of Hopedale,'in the county ofVorcester and State of Massachusetts, haveinvented an Im- 5 provement inLooms, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object the proio duction of a loom whereinmeans are provided to detect the shuttle when it has been improperlypositioned in the shuttle-box and to automaticallyfprevent the transferof a fresh supply of filling to the shuttle when in I5 improperposition.

My invention isl particularly adapted to that class of looms wherein aplurality of lilling-carriers are supported in a filling-feeder, fromwhich the lling-carriers are autolnatzo ically transferred one by one tothe shuttle upon failure of the filling, such a loom being shown inUnited States Patents Nos. 529,940 and 529,942, granted to me November27, 1894. The transfer of the fresh iilling-car- 2 5 rier to the shuttleis leffected while the shuttle is in the shuttle-box, and, obviously, ifthe shuttle is improperly positioned therein it will be impossible toproperly effect the transfer of the filling-carrier, and the mechanism3o is liable to break or smash.

In another United VStates patent, No. 529,943, I have shown one form ofmechanism for detecting the improper position of the shuttle in theshuttle-box; but in my present 3 5 invention I have simplified theconstruction of the mechanism, and I have also mounted theshuttle-detector on the transferrer-support so that it preserves thesame relative position tothe shuttle as do the other Work- 4o ing partsof the feeder.

Other features of my invention will be hereinafter fully described, andparticularly pointed out in the claims.

Figure l is a transverse section of a suffi- 4 5 cient portion of a loomto be understood, with my invention applied thereto, looking toward theinner end of the filling-feeding mechanism looated at the right-handside of the loom. Fig. 2 is a partial'end elevation of the mech- 5oanism shown in Fig. l and viewed from the right-hand side of the loom.Fig. 3 is a similarview with the parts in position to effect thetransfer of a fresh filling-carrier to the shuttle if the latter isproperly positioned in the'shuttle-box, and Figs. 4, 5,6, and 7 are de-55 tached deta l views to be referred to.

The loom-frameA, the breast-beam A40, the lay A3, having the bottom ofits shuttle-box cut away below the self-threading shuttle S, thefilling-feeder'comprising connected rota- 6o table plates suitablyshaped to receive the ends of the lilling-carriers h, one of which isshown in dotted lines, Fig. l, the weft-threadsupporting platel b', theweft-end holder h2, the stud j', the pusher f, mounted thereon 65 andhaving'the forked depending end f3 and a projection 2l, the arm f6,havingv thereon the tip-supporting device f s, (see dotted lines, Fig.1,) and the shaft d', adapted to be rotated by the movement oftheweft-fork in the ab- 7o sence of the lilling, are and may be all asrepresented in said Patent No. 529,942, wherein like letters are used todesignate like parts, the parts hereinbefore referred to being operatedin practice substantially as therein 75 provided for.

The chute h, secured to a spring-controlled arm h', pivoted on a studh2, and the arm h5, connected to the rock-shaft d and having a pin hw toenter a cam-slot h3 in an arm hw on 8o the stud h2, cooperating with thearm h to control the movement of the chute and position it `ready toreceive the filling-carrier ejected from the shuttle, are alsosubstantially as shown and described in said Patent 8 5 No. 529,942referred to.

The rock-shaft d has secured thereto an arm d2, connected to one end ofa spring d3, the other end of the spring being connected to theloom-frame, and a link d4 is jointed at 9o .its lower end to the armcl2, the upper end of said link having a longitudinal slot d5, enteredby a pin or stud c on one of the arms c of asleeve or hub c. (Shownseparately in Fig. 5.) Thus hub cis rotatably mounted 95 on 'the stud f,and a second upturned arm c2 is pivotally connected to one end of anadjustable link e, the other end of the said link being jointed at e toan arm It of a hub k, providedwith a downwardly and laterally :toc bentarm k2, which forms the shuttle feeler or detector. The link e comprisesa rod threaded at each end in the same direction and screwed into thethreaded end pieces, which latter are pivoted to the arms c2 and k',respectively, the link being adjusted to the proper length when the loomis first set up.

It sometimes happens that loom attendants will tamper with the mechanismin such a way as to throw it out of adjustment, and by the constructionherein shown the length of the link cannot be changed without removingit from the loom.

An arm kx, .rigidly secured to the stud f, as herein shown, is providedwith a laterallyextended pin or stud 7a3, (see dotted lines in thedrawings,) upon which the hub 7c is pivotally mounted, the detector-arm7.52 being bent, as shown in Figs. l and 5, to clear the adjacent partsof the mechanism as it operates, the lower end of the arm being turnedtoward the lay to engage the shuttle if the latter is improperlypositioned in the shuttlebox.

The forked depending end f3 of the pusher f has mounted therein arockerstud m, (clearly shown in Fig. 4,) provided with a disk-like headm', and one end of a spring s, surrounding the stud between the head andthe end f3, is secured to said head, the other end of the spring beingsecured to the end f3, the spring normally tending to turn the stud inthe direction of the arrow l0, Figs. 2, 3, and Il. An arm m2 is securedto the stud m and has on one side an ear m3, on the opposite side, nearits extremity, a lug or projection m, while a notched dog mx is adjustably secured to the arm 'm2 by set-screws 5 and G. The dog 'fax ismoved into position, as will be described, to be engaged by a bunter C2on the lay when a filling-carrier is to be trans ferred from thefilling-feeder to the shuttle by the pusher j", provided the shuttle isproperly positioned in the shuttle-box.

The hub c (see Fig. 5) has a third arm c, extended oppositely to the armc, downturned and bent laterally at o4, and then down and inwardly, asat c, and to the part ci lis rigidly attached a downturned finger n, thebase of said finger being preferably slotted at n to receive the boltnx, connecting it to the part e5 of the arm c3, in 4order that thelinger may be adjusted thereon. The finger n extends down over the lugm" on the arm m2 and at times controls the latter, as will now bedescribed.

ln Figs. l and 2 the parts are shown in the position they occupy whenthe loom is running properly, and it will be not-iced that the dog mx isdepressed, so that its notched end is not in the path of the bunter C2.It will be noticed that the link d* is held in its lowered position byits connection with the rock-shaft d', and the said link, act-ing on thearm c of the hub r, depresses said arm, thereby holding the bent arm c3of said hub elevated and with the finger n toward the front of the loom.This finger, acting' upon the projection mx on the arm m2, swings thelatter forward, turning the stud m against the force of the spring s,such position of the arm m2 maintaining the dog mx in inoperativeposition and forming a detent therefor. If, however, the filling shouldfail for any reason, the rock-shaft d will be turned, as in UnitedStates Patent No. 529, 940, elevating the lilik d'1, and therebyallowing the hub c, with its arms, to turn on the stud f. The spring simmediately acts to turn the stud m in the direction of the arrow lO,Figs. 2, 3, and et, to throw the dog mx up into operative position, Fig.3, into the path of and to be engaged by the bunter C2 when the lay nextcomes forward. spring swings the arm m2, its lug m4 acts upon the fingern, moving it inward and thereby depressing the arm c3, so that the armc2 is swung outwardly into the position shown in Fig. 3. The link c inconsequence pulls the upper end of the arm tover and throws the shuttlefeeleror detector 752 into the position shown in Fig. 3, and if theshuttle is properly positioned in the shuttle-box the said feeler willnot be engaged thereby, and the bunter, acting upon the dog mx, willswing the end f3 of the pusher j" to depress the latter and transfer thefilling-carrier to the shuttle. The direction of the pressure exerted bythe bunter upon the dog is in a direction upwardly inclined toward theforked end f, so that the said end will. be moved with the dog insteadvof having the effect of swinging the dog relatively to said forked end,as would be the case if the pressure was in a downward direction.

If the shuttle is improperly positioned in the shuttle-box it willmeetthe fceler 7a2 in the forward movement of the lay and will swing it onits pivot 7a3, thereby moving the arm k in the opposite direction and,through the link e and arm c2, turning the hub c to swing the arm e3outwardly. This movement of the arm c3 causes the finger `it to engagethe lug m and thereby swing the arm m2 to rock the stud m in thedirection opposite to the arrow l0 to depress the notched face of thedog/nr1 and move it out of the path of the movement of the bunter C2,the said dog being' moved into substantially the position shown in Figs.l and 2. This movement of the dog relative to the forked end f3 of thepusher is effected because the pressure applied to said dog is exertedaltogether below the pivotal. point of the arm m2, and inasmuch as thepusher is only operated when the dog is engaged by the bunter the pusherwill not be operated to transfer a filling-carrier to the shuttle whenthe latter is improperly positioned.

lVhen a filling-carrier has been properly inserted into the shuttle, therock-shaft d returns to its normal position, as in the patent referredto, and through the link d restores the parts to normal positionoccupied when the loom is running properly.

My invention is not limited to the precise construction or arrangementof' parts herein described, as the same may be modified or As the IOOIIO

rearranged without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a loom, the lay having a slotted shuttlc-box; a filling-carrierfeeder; a transferrer for the filling-carriers; a dog pivotally mountved on said transferrer and a spring to move the dog into operativeposition; a bunter; a controller for and to normally retain the dog ininoperative position against the action of its spring; means actuated byfailure of the weft to release the dog; a shuttle-feeler mounted on afixed fulcrum above the lay and adjacent the transferrer; andconnections between said feeler and the dog-controller, to thereby movethe dog into inoperative position when the shuttle to be supplied withfilling is not in proper position in the shuttle-box, substantially asdescribed.

2. In a loom, the lay havinga slotted shuttlc-box; a `filling-carrierfeeder; a filling-carrier transferrer a dog supported thereby and aspring to move it into operative position; al cooperating bunter; meansactuated by failure of the weft to release the dog to the action of thespring; a shuttle-feeler pivotally mounted on a xed fulcrum above thepath of the lay, and connections between the feeler and the dog, wherebythe dog is moved into inoperative position when the shuttle to besupplied with filling is not in proper position in the shuttle-box,substantially as described.

3. In a loom, the lay having a slotted shuttle-boX, a filling-carrierfeeder; a transferrer for thev filling-carriers, an actuating-dogpivotally mounted on said transferrer and a spring to move the dog inone direction; a

cooperating bunter; a fixed support extended adjacent the transferrer; ashuttle-feeler pivoted thereon and extended therefrom; means controlledby failure of the weft to move the dog and the shuttle-feeler intooperative position, and direct connections between said dog andshuttle-feeler, including a rocking arm having a finger to engage thedog, whereby the dog is moved into inoperative .position when a shuttleis improperly positioned in the shuttle-box, substantially as described.

4. In a loom, the lay having,` a slotted shuttlc-box; a filling-carriertransferrer; a pivotally mounted dog operatively connected therewith aspring to move it into operative position; means actuated by failure ofthe weft to release the dog; a bunter; a shuttlefeeler fulcrumed abovethe path of the lay, and positive connections between said feeler andthe dog, to control the position of the latter in opposition to theaction of the spring, substantially as described.

5. In a loom, the lay; a filling-carrier transferrer having a dependingend; a dog pivoted thereon; means actuated by failure of the weft toreleasethe dog; a bunter; a spring to move the dog into operativeposition; a shut-` tle-feeler; a rocking arm provided with a finger toengage and move said dog against the actuating-spring; and connectionsbetween the feeler and arm to move the latter; substantially asdescribed.

6. In a loom, the lay having a slotted shuttle-boX; a lilling-carriertransferrer having a depending end; a spring-actuated dog pivotedthereon; means actuated by failure of the weft to release the dog, abunter; a controlling device for the dog, mounted to rock on thetransferrer-support to move said dog against the spring; a rigid supportextended above the path of the lay; a shuttle-feeler pivoted thereon,and a link connecting said feeler and the dog-controlling device,substantially as described.

7. In a loom, the lay having a bunter; a filling-carrier transferrer; aspring-actuated dog pivotally mounted thereon; a pivoted controllingdevice for the dog, to move it against the action of the spring, and apivoted shuttle-feeler, connected to rock simultaneously; a rock-shaftgoverned by failure,

of the weft, and a connection between said shaft and the controllingdevice, whereby upon failure of the weft the dog is moved into the pathof the bunter, and the shuttle-feeler into operative position,substantially as described.

8. In a loom, the lay having a bunter; a lling-carrier transferrerhaving a depending end; a rocker-stud mounted therein, anactuating-spring for the stud; a dog secured to the stud and having aprojection; means actuated by failure of the weft to release the dog; ashuttle-feelerpivotally mounted above the path of the lay 5 acontrolling-finger to engage the projection on the dog and move itagainst the action of the spring, and connections between the feeler andthe iinger, to govern the operation of the latter, substantially asdescribed.

9. Inaloom, aiilling-carrierfeeder; atransferrer to transfer afilling-carrier therefrom to the shuttle; the lay having a slottedshuttle-boX; a bunter; a spring-actuated coperating dog pivotallymounted on the depending end of the transferrer; a detent for said dog,to normally hold it in inoperative position; controlling means for saiddetent, whereby when the weft fails the dog will be released; ashuttle-feeler pivoted above the path of the lay, and connectionsbetween it and the detent, to positively move the dog into inoperativeposition when the shuttle'to be supplied with filling is not in properposition in the shuttle-box, substantially as described.

In testimony whereof I have signed my name to this speciiication in thepresence of two subscribing Witnesses.

lJAMES Il. NORTHROP.

' Vitnesses:

GEORGE OTIs DRAPER, S. FRED SMITH.

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